Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 9, Part 5American Society of Mechanical Engineers, 1990 - Arctic regions |
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Page 74
... actuator , bonnet and internals for replacement . This type of repair has not been carried out to date on an ... actuator in which the rotation is produced directly . All the actuators currently in subsea use are hydraulic . The ...
... actuator , bonnet and internals for replacement . This type of repair has not been carried out to date on an ... actuator in which the rotation is produced directly . All the actuators currently in subsea use are hydraulic . The ...
Page 75
... actuator . Alternatively a spring may be placed under the piston and the compartment left unsealed . A thrust bearing is needed to allow the piston to rotate against the spring . There is no side force applied to the valve stem . Double ...
... actuator . Alternatively a spring may be placed under the piston and the compartment left unsealed . A thrust bearing is needed to allow the piston to rotate against the spring . There is no side force applied to the valve stem . Double ...
Page 76
... actuator and there is little choice as to where they are placed . Accumulators may be placed anywhere within a reasonable distance from the actuator so they are much more flexible to mount . On larger sizes there is usually more than ...
... actuator and there is little choice as to where they are placed . Accumulators may be placed anywhere within a reasonable distance from the actuator so they are much more flexible to mount . On larger sizes there is usually more than ...
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Common terms and phrases
actuator analysis applied assessment axial ball valve Beaufort Sea bending bifurcation break-out buckling calculations check valve circumferential Cisco field coefficient collapse corrosion crack ensembles crack tip damage deformation density distribution effect equations ESD valve Figure flow force fracture fracture mechanics free span function HAZ toughness Houston hydrodynamic ice feature ice hole ice keel ice scour increase installation layer length line pipe Lougheed Island material maximum method mode shape Offshore Mechanics Offshore Technology Conference on-bottom stability parameters partial safety factors pearlite permafrost pipe displacement pipe weight pipeline plastic plate platform predicted pressure procedure radial ratio reliability riser rupture scour hole seabed seastate shows simulated Sotberg stability design strength stress structure Submarine Pipelines subsea subsea ESD surface Table tensile tensile strength tracers tube uncertainty values variables velocity vertical wave yield strength